How many letters does the top answer for “having the form of a rostellum, or small beak.” have?

The most common answer is rostelliform (12 letters).

Crossword clue: having the form of a rostellum, or small beak.

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

rostelliform 12 letters web-def

Having the form of a rostellum, or small beak.

having the form of a beak. 60% similar → rostriform

having the form of a small tube. 50% similar → tubuliform